. >> reporter: michele borba says this is why parents need to teach their kids what to do in many different stranger situations. >> you role play it over and over again. you play what if scenarios. as a result, it's more lickly to seep in. show, don't tell. >> reporter: and that's what we plan to do tonight. i'm a mom with two boys, 3 and 8 years old. and i've been teaching my kids about stranger safety since they were toddlers. but like so many parents, i wonder if my kids will remember those lessons in a real life situation. i'm so curious, in fact, that later in the hour i'll be testing my 8-year-old. along with a group of other moms and dads, we'll watch our kids as we put them through a variety of tests to see how they'll react in risky situations with strangers. actual scenarios convicted child predators have used to target children. >> hey, guys. >> hi. >> i'm matt the ice cream man. >> reporter: what will they do with when a friendly ice cream man makes a tempting offer. >> how would you like some free ice cream? >> reporter: will any of them climb in to a vehicle with a stranger? >